Speedometer, kilometer and miles, miles odometer, positive bias

Years 2000–03 Models 2 Factory citations 7

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Also documented for GMC Oldsmobile

Documented applications

Blazer — S-10 second generation (1995–2005)

2000–2003 Factory-verified

2001 list omits positive bias

GM factory document — 2000 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2001 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet blazer 4wd rpo code list, p.1.
GM factory document — 2003 chevrolet blazer 4wd rhd rpo code list, p.1.

S-10 pickup — Second generation (1994–2004)

2000–2002 Factory-verified

2001 list omits positive bias. The 2002 list reads as the 2001 list.

GM factory document — 2000 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2001 chevrolet s10 pickup 4wd rpo code list, p.1.
GM factory document — 2002 chevrolet s10 pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of UC4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.